[tex]18d-2m+9k[/tex] < [tex]5k+10[/tex]
[tex]18d-2m[/tex] < [tex]-4k +10[/tex]
[tex]-2m[/tex] < [tex]-4k +10 -18d[/tex]
[tex]m[/tex] > [tex]\frac{-4k+10-18d}{-2}[/tex] (flipped the sign because we're dividing by a negative)
[tex]m[/tex] > [tex]2k+5+9d[/tex]
